package chapter03.Example07;
class Student {
    private String name;
    private int age;
    public Student (){ }
    public Student (String n){
        name = n;
    }
    public Student ( String n,int a){
            name = n;
        age = a;
    }
    public void read() {
        System.out.println("我是："+name+"，年龄"+age);
    }
}
public class Example07 {
    public static void main(String[] args){
        Student stu1 = new Student("张三");
        Student stu2 = new Student("张三",18);//实例化Student对象
        stu1.read();
        stu2.read();
    }
}
